The Effect of Phyprozyme HP Supplemented Diets on Growth Performance, feed utilization, and Survival rate of Nile tilapia (Oreochromis niloticus) Ayman Alameen Mohammed (a*), Sajidan (b), Agung Budiharjo (b)
(a) Department of Fisheries and Wildlife Science, College of Animal Production Science and Technology, Sudan University of Science and Technology, Wehda street 9, Khartoum, Sudan
(b) Department of Bioscience, Graduate School, Sebelas Maret University
Abstract
This study was conducted to know the effect of phyprozyme HP supplemented diets on growth performance and survival rate of Nile tilapia. Phyprozyme HP enzymes are standardized to contain a combination of protease. xylanase. hemicellulose. and phytase. This research used completely randomized design with eight treatments and two replicates T1 control 0.00. T2 0.05. T3 0.12. T4 0.19. T5 0.26. T6 0.33. T7 0.40. and T8 0.47 g phyprozyme HP kg feed. Nile tilapia with the average initial weight of 11.9 g were stocked into hapa nets 70.45.90 cm3 20 fish per hapa net and were fed three times daily 7 00 AM.12 00 Noon. and 16 00 PM at feeding rate of 5% of the total body weight. After 56 days of feeding, the mean final weight MFW. weight gain WG. average daily gain ADG. feed conversion ratio FCR. specific growth rate SGR. and survival rate SR were determined. The results show that there were significant differences on growth performances among dietary treatments. The growth of the fish fed T6 0.33 g showed higher MFW 435.30. WG 84.85. ADG 3.6. SGR 9.45 compared to other treatments. The best feed conversion ratio FCR was achieved with T6. T5 and T7 followed by T3.T4. T2. and T1 but the T8 had the worst FCR. There were no signifi-cant differences in survival rate SR among the eight dietary treatments. Based on the results, it could be concluded that supplementation of Phyprozyme HP in tilapia diets can improve the growth performance and may even have negative effects with higher doses.
